On March 18, 2025, CoolSeal USA Inc., Inteplast Group Corporation, SeaCa Plastic Packaging, and Technology Container Corp. (collectively “Petitioners”), filed a petition for the imposition of antidumping and countervailing duties on U.S. imports of polypropylene corrugated boxes from the People’s Republic of China and the imposition of antidumping duties on imports of such boxes from…